Spark Plug Wires on Amazon
#31
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
All connectors including those on the coils tested in-spec (see table). On top of that, all 16-year-old connectors, once wiped down and cleaned up, looked like they just came off the Porsche parts shelf. All of the actual electrical connections were found to be in as-new condition (zero corrosion) due to the very good fit between the connector and spark plug and the connector and ignition wire. Beru certainly uses top quality items.
![](http://edelweiss.smugmug.com/Cars/Porsche-Technical-Stuff/Beru-Ignition-Cables/Porsche-993-Ignition-Cable/1238474623_7n3wf-O-3.jpg)
#32
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
that was my weak attempt at sarcastic humor Alex.
you know... Humor, right?![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
So, back to the dead horse: You are reusing reisistors that will fail at some point. When? Only time will tell.
How will you know?
You likely won't notice the slight drop in performance. The dual plug design will mask it well.
I am sure you have planned on regular resistance testing of the wires.
No doubt.
you know... Humor, right?
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
So, back to the dead horse: You are reusing reisistors that will fail at some point. When? Only time will tell.
How will you know?
You likely won't notice the slight drop in performance. The dual plug design will mask it well.
I am sure you have planned on regular resistance testing of the wires.
No doubt.
#33
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
But I do have one set of Beru cables for sale from the remainder of the spool; I believe it is spoken for though.
Would you replace a complete wire set after one year if one spark plug connector failed? I'd just replace the failed part and not hose the customer.
Not really, just as nobody would. What is Porsche's recommended maintenance interval for testing these plug caps?
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
#34
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Mark, everything fails. As for beating a dead horse, I am passing / sharing information and that is what forums should be about. I am not in the business of selling wire sets, so I have no agenda.
But I do have one set of Beru cables for sale from the remainder of the spool; I believe it is spoken for though.
I am sure it will, just as it will on a new set that just had a cap fail by chance.
Would you replace a complete wire set after one year if one spark plug connector failed? I'd just replace the failed part and not hose the customer.
Not really, just as nobody would. What is Porsche's recommended maintenance interval for testing these plug caps?![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
But I do have one set of Beru cables for sale from the remainder of the spool; I believe it is spoken for though.
I am sure it will, just as it will on a new set that just had a cap fail by chance.
Would you replace a complete wire set after one year if one spark plug connector failed? I'd just replace the failed part and not hose the customer.
Not really, just as nobody would. What is Porsche's recommended maintenance interval for testing these plug caps?
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
The technical info you are providing is great! I'm glad you have the time and interest in pursuing this level of detail.
Here are my last couple of whacks at the poor, deceased equine:
Everything fails, yes. Preventative maintenance is the point.
I would not need to replace a solo resistor... because I wouldn't let it get to that point. As for "hosing a customer", it would be doing a customer a disservice if you didn't inform them of the likelihood of future failures, leading to additional labor cost every time.
These wire sets (including resistors) can go usually about 90K miles, sometimes less, sometimes more. VC leaks can shorten the life.
Ciao!
#36
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Mark, lets leave it at that. You are on this forum as a vendor so I can see where you are coming from. The more time I spend here, it has become apparent that this forum is vunue for sales. I like to be on forums hoping that there are techies that love tech stuff and are willing to exchange and provide information, not hoard it.
#37
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Mark, lets leave it at that. You are on this forum as a vendor so I can see where you are coming from. The more time I spend here, it has become apparent that this forum is vunue for sales. I like to be on forums hoping that there are techies that love tech stuff and are willing to exchange and provide information, not hoard it.
Based on this and other threads I gather you have had some poor experiences with shops or suppliers. Please don't let that taint ALL businesses. Not everyone is out to take your money and rip you off.
Finally, I have rarely seen anyone "hoard info" here. Just the opposite.. as far back as I can remember.
We can agree to disagree.
#38
Agent Orange
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Here's my non-vendor opinion: I would never buy just the wires. Not only is it a very tedious job, but in my ownership experience with 3 964/993 cars, the plugs are the ones that fail, not the wires. Getting the wires and reusing the plugs is a complete waste of time and money. You think you may be saving a couple hundred bucks, but you're just inviting trouble and headaches. And while some people seem to like that, may this be a warning to the rest.
#39
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
In my case, the original OEM wires were showing cracks. While not a failure thanks to using OEM valve covers that cannot short ignition wires to ground, I like many here, like to maintain my car in tip top condition, even if that means early replacement.
#40
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Alex,
Did you document your work so the rest of us could see your process and make the determination if we want to buy the complete harness or approach build it?
Thanks.
Did you document your work so the rest of us could see your process and make the determination if we want to buy the complete harness or approach build it?
Thanks.
#41
Addict
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I have no dog in this fight, so hesitated to jump in, but feel compelled to. Just my opinion, not a flame or fuel to the fire.
I've dealt with FD. First of all, yes, they are a vendor. But they remind everyone of that not in a "buy from me" tone, but a "full disclosure on my opinion" tone. In fact, they've told me before to buy from somewhere else and even told me where if they can't beat the price. Yes, Mark gave the price of his product here, but even that was so you could compare build vs. buy. Was doing some work on a wire worth $430-285=$145 of your time? If you enjoy it, of course not. Great! If you don't enjoy it or can't do it in an hour or so, then perhaps not. Great! Now you know!
YMMV here as well. MANY times on Rennlist I've believed the "it will only take this long" story which was always true with someone having better experience, skills, tools or facilities. Sometimes it was also true for me. Often it was not the case though. I think the other side of the story IS what Rennlist is about too.
I welcome learning potentially how easy it is to DIY these wires from you. I also welcome how easy it is to buy them (or anyone else), and perhaps avoid making a $285 mistake if I thought I was getting the same as the $430 version, from Mark or whomever has a more valid experience/opinion ratio than I do. In my opinion FD is honoring Rennlist and should not be nipped at as a vendor with an agenda. I personally ALWAYS welcome the FD POV.
Carry on.
not hose the customer
making up the wires is 1% of the work
I welcome learning potentially how easy it is to DIY these wires from you. I also welcome how easy it is to buy them (or anyone else), and perhaps avoid making a $285 mistake if I thought I was getting the same as the $430 version, from Mark or whomever has a more valid experience/opinion ratio than I do. In my opinion FD is honoring Rennlist and should not be nipped at as a vendor with an agenda. I personally ALWAYS welcome the FD POV.
Carry on.
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
#42
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I posted all the cable data and cable holder location diagrams on my site.
Beru Ignition Cables
I did not post a how-to-install simply because if you cannot do that, it is pointless whether it is a store bought ignition cable set or a DIY replacement cable set.
I have a few people interested via PMs. Replies only to those who have their PM feature enabled.
And let me confirm, the actual installation is 99% of the work. Who the hell thought to place those two center cable holders behind the alternator.
![banghead](https://rennlist.com/forums/graemlins/banghead.gif)
#44
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Oh wait, did I just divulge some secret technical info I've been hoarding...
![Roll Eyes (Sarcastic)](https://rennlist.com/forums/images/smilies/rolleyes.gif)
#45
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Imagine if I had to pay for that.
![nono](https://rennlist.com/forums/graemlins/nono.gif)
Got a few of those, but in the end, didn't need them.
Hardly.
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)